More on what Cloudbird described as floaty: The easing of the animation is off. The in and out points? The motion graph? The animation curve? Whatever it's called in unity or in the animation software you are using. I think tweaking that will solve alot?
Tldr; If you make more of a gap between the time parts of the animation happens it may look better.
Like instead of the car pictured here being at the same pace the entire time you could speed up or slow down segements of the animation to give it more "weight" and less of the "floaty" feeling? I hope that makes sense?